I remember being like 6 and thinking I'd come up with a genius idea about this. Years later (and I refuse to say how many) I heard that perpetual motion didn't work and this came to mind again.
Reminds me of the genius idea to become invisible my friend thought of in high school.
“We see things because photons are bouncing off of them into our eyes, yeah? Well what if we somehow managed to get rid of those photons, and there’d be nothing to enter our eyes? Nobody would be able to see you without then bouncing off you.”
Dude invented the dark.
dude whattt🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣
(i'm sorry if me laughing made you feel bad.. it was never in my intentions.. it's just that i found it really funny.. that's all.)
Practically speaking, that's no different from this. Since the truck is pushing the cart, they're still considered part of the same system, which means Newton problems happen.
Startlingly it does work and has been tested by Mythbusters.
You can argue all you want about how efficient it is and which forces are involved but forward motion was achieved so simply put it does work.
https://www.youtube.com/watch?v=uKXMTzMQWjo
It works, but that's because you are adding a force (air) to the system and the sail is reflecting some of that force backwards, generating thrust.
you said airboat, friend. As per your link, they also explain that:
> This is very ineffective, as the fan pulls the boat backwards by shoving the air forwards, and the sail pulls the boat forwards with almost the same force by stopping the air again. The boat may not stay exactly stationary, but it sure won't make much progress.
So please, tell me why you spend your time spreading pointless misinformation lmao
That’s because you and your hair are part of the same system, a fan draws in air from OUTSIDE the system, it’s not efficient at all and you’d be better off just getting a motor, but it does work.
Sort of.The magnet itself is pulling forward but to have a magnet that big you would need so much electricity and in turn an apparatus so big it would create more load so now you need a bigger magnet and a bigger load it's an infinite loop of nonworking bullshit. However magnets can be used to stop drag and hold up entire train cars on monorails. Bullet trains are cool
You're kind of correct but if your statement was true then mounting the magnet to the ground would have no effect when in reality magnets are used to move cars at junk yards all the time
These damn millennials, JUST PICK YOURSELF UP BY YOUR BOOTSTRAPS! If you pick yourself up hard enough you’ll fly, I had to carry myself that way to school everyday back in the 40’s, uphill, both ways.
You could also make these vehicles jointed to one another to prevent collisions, traffic jams, and increase efficiency. Genius idea! Should make billions of dollars in productivity! Why hasn't no one thought about this before?!
All forces push equally I'm both directions. The only way to get somewhere is to leave something behind.
Cars move by pushing the earth the other way. Boats move by pushing water the other way. This contraption would just create to equally powerful forces that cancel each other out
Basically humans need to see physics in action to be able to predict the outcomes of any movement and force interaction. A kid saw a rock fall and now he knows rocks will fall. Troll physics are so popular because they are the conclusions you come up with if you didn't see enough physics in action. This perpetual motion magnet device is the same as when kids think you can jump from a building with a big heavy object, and then jump off from it before you hit the ground to negate "fall damage"
because the magnet and the metal would be equally attracted to each other so neither would pull to other lmao. also even if this did work there’s nothing to say the car wouldn’t move backwards
Someone genuinely explain why it wouldn't. I imagine it has something to do with the weight of the truck, but the obvious "it just doesn't work like that" isn't enough for my feeble mind
The truck isn’t just getting pulled towards the magnet. The magnet is also being pulled towards the truck with the same force. And becuase the magnet is physically mounted on the truck itself, this means that the magnet pushes on the truck just as much as it pulls on it, resulting in zero movement
Magnets work both ways so it will try to pull the car and the car will try to pull it, who's stronger? I don't recall the exact explanation tho.
Also its the same logic for why we can't hold our own body in the air with our hands as a support
it can work if a few things are true.
1. the contraption has to be able to withstand the force of the magnet pulling towards the truck. So basically, if the magnet generates 100 newtons of force pulling towards the truck, we're fine so long as the contraption can take 101 newtons of force on it.
2. you have to be able generate enough power to make it work.
So if you throw this together, with an RC car, you could make the thing move forward, it'd just be inefficient as all hell
Newtons 3rd law.
The magnet is attached to the truck by an arm.
The magnet is supposed to pull the iron slab from the front of the truck.
The arm holding the magnet does not move. (Even if it did, it still would not allow the truck to accelerate)
The iron slab itself will get attractive forces towards the magnet, buy only the magnet and not truck entirely.
You have the same net force from the magnet pulling the iron slab, as to the arm holding the magnet in place from the bed of the truck.
What if you have magnets on the wheels (don't ask me how) and two big magnets, front and back, that you could change the polarity of, perhaps by mechanically spinning or running a electric current.
You attract and repel the magnets on the wheels in a sequence that makes them roll forwards (or backwards).
This sounds like a horrible idea and, aside from being practically unfeasible, a recipe for attracting any and all sorts metal scraps/shrapnel to your car/tires.
You, my friend, have just created a shitty version of an electric motor, just built around the wheel rather then built around the axle. It works in a similar way, although its design inherently switches polarity just based on how the axle has rotated. [How electric motors work](https://electronics.howstuffworks.com/motor.htm)
yay! just wait, you will soon see me rolling down the street in my shitty-electric-motored, post-apocalyptic jalopy.
the fact that someone even *tried* to understand what i was poorly attempting to express brought me some kind of joy!^lol
thank you for the link :)
So let me explain why this wouldnt work the averagr car is 600 pounds, therefore we would need a magnet so strong it could pull 600 pounds, not to mention thsts a truck which waighs wayyy more, since magnets pull everything aroung they would disrupt other magnets
What if two people who are superhumanly strong attached to a long rope flings the other into the air and the person in the air uses their immense strength to pull the person from the ground and then they just continuously pull/fling each other. Would this work?
wow albert einstein is so proud now hes doing an experiment if you can run faster by pulling your head forwards wow its so successful. just wow never thought of that 😐
I remember being like 6 and thinking I'd come up with a genius idea about this. Years later (and I refuse to say how many) I heard that perpetual motion didn't work and this came to mind again.
I was planning to keep it a secret and get rich as I get older when I found out about magnets at the age of 4 or 5.
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Throw yourself at the ground and miss.
That’s how orbits work!
Like being friend zoned. I see
Friend zoomed. You have to keep your speed up or you’ll fall.
One problem is that you have to miss the ground accidentally. It's no good deliberately intending to miss the ground because you won't.
It helps to be easily distracted. *flock of ADHD kids fly by*
42
Try harder. Try pushing your head with your hands.
This would work great when going down hills!
Something with gyroscopes
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I'll apply a load to you ;)
I'll apply a load in you
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Now I have to watch Robocop again, thank you kind stranger
i am immediately going to assume that you are 8 years old just for shits and giggles
My wife is sooooo going to jail.
Reminds me of the genius idea to become invisible my friend thought of in high school. “We see things because photons are bouncing off of them into our eyes, yeah? Well what if we somehow managed to get rid of those photons, and there’d be nothing to enter our eyes? Nobody would be able to see you without then bouncing off you.” Dude invented the dark.
Because metal affect magnet the same as magnet affect metal.
coulomb's law
no its not coulumb's law.. that for electrostatic forces
Newton’s 3rd law?
That is indeed a correct perspective on it.
Imagine being a physics nerd. I like my magnets like I like my fast food, inexplicably tasty.
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Someone calls magnets tasty and you pick up on being called a nerd. Insecurity is a bitch, huh?
shut up highschool nerd 🤓 hyuck
Now look at you, everyone is coming to party at my house and just so you know, your wife kissed me on the cheek when I got here.
Imagine calling fast food tasty
I seriously called magnets tasty in the same sentence and you picked up on that?
What you described: one of Newton’s bangers Coulomb’s law: electric field of a point charge
dude whattt🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣 (i'm sorry if me laughing made you feel bad.. it was never in my intentions.. it's just that i found it really funny.. that's all.)
Isn't this the same as pulling your arm with your other arm?
Yes. In physics terms, the force is internal to the system. Newton's second law is $F_{ext}=ma$. Not just force, it has to be external.
LaTeX in plaintext form is cursed
Real mathematicians don't compile their LaTeX, they just read it straight
*thesis flashbacks* The trees are speaking compilation error, man.
I finished my dissertation several days before I finished my dissertation, if you know what I mean.
you know it’s legit when it’s in LaTeX tho
I'm allergic to LaTeX.
It's pronounced latech
It's pronounced latACHWffft
Not if you spent enough time writing in LaTeX
I was trying to type that in markdown. Failed LaTeX. Is there a sub for that?
Lol i imagined a Rupert’s Drop flying uncontrollably
So I have a idea, so the magnet is infront of the vehicle, on a cart, thats pushed along by the truck as the magnet pulls it forwards.
Practically speaking, that's no different from this. Since the truck is pushing the cart, they're still considered part of the same system, which means Newton problems happen.
*an idea
Thought that was busted when people used a fan to power a sailboat
The air movement is outside of the system...
There is air in that system This would be like if someone on the sailboat started trying to push the sail with their hands to make it go foward.
You can't use a fan to power a sailboat. So, no it's not busted.
You can, same way you can have a skateboard + leaf blower + umbrella system.
That doesn't work.
Startlingly it does work and has been tested by Mythbusters. You can argue all you want about how efficient it is and which forces are involved but forward motion was achieved so simply put it does work.
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They are all fake it's impossible. To make it become possible then physics would have to change.
https://www.youtube.com/watch?v=uKXMTzMQWjo It works, but that's because you are adding a force (air) to the system and the sail is reflecting some of that force backwards, generating thrust.
https://en.m.wikipedia.org/wiki/Airboat
she said sailboat
https://van.physics.illinois.edu/qa/listing.php?id=275&t=sailboats-and-fans
you said airboat, friend. As per your link, they also explain that: > This is very ineffective, as the fan pulls the boat backwards by shoving the air forwards, and the sail pulls the boat forwards with almost the same force by stopping the air again. The boat may not stay exactly stationary, but it sure won't make much progress. So please, tell me why you spend your time spreading pointless misinformation lmao
Not a sailboat it's an air boat. You also can't pick yourself up by you hair but try and prove me wrong.
That’s because you and your hair are part of the same system, a fan draws in air from OUTSIDE the system, it’s not efficient at all and you’d be better off just getting a motor, but it does work.
https://van.physics.illinois.edu/qa/listing.php?id=275&t=sailboats-and-fans
Yeah but the solution is to remove the sail. Making it not a sail boat.
Are you sure you’re not pulling my arm?
I think he's pulling your leg
Nah he's pulling something else 😳
give yer balls a tug
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The 11th finger
So the big toe
It’s like pulling yourself out of a hole by pulling your own hair.
Yes.
Yeah but I can tell you haven't thought it through completely. Sit on a wheelchair and pull your arm with your other arm,you'll see what happens.
Instructions unclear, now travelling faster than speed of light
What? It’s my main mode of movement.
that’s not my arm i’m pulling
Or is it?
Sort of.The magnet itself is pulling forward but to have a magnet that big you would need so much electricity and in turn an apparatus so big it would create more load so now you need a bigger magnet and a bigger load it's an infinite loop of nonworking bullshit. However magnets can be used to stop drag and hold up entire train cars on monorails. Bullet trains are cool
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You're kind of correct but if your statement was true then mounting the magnet to the ground would have no effect when in reality magnets are used to move cars at junk yards all the time
Why add the extra "metal"?
Because the more metal the more turned on magnet will be, therfore car go faster
Monke see one banana, it go fast. Monke see many banana, it go faster.
What if there is a banana storage unit? Filled with 1b bananas? How fast would monkey go?
Very fast
what if all the bananas were bruised
Yo its a banana not my penis
C
Plaid
Lol
This is the way.
Obviously 🙄
Well you wouldn’t want this thing to pull/ distort your fenders and hood over time
Minecraft flying machines be like
Yea but those work
the same reason you can't pull yourself up and just fly
You can’t do that?
maybe with a little help from some friends
billy shears!
The one and only
What would you think if I sang you a tune?
No, you have to throw yourself at the ground and miss.
I just did it.
These damn millennials, JUST PICK YOURSELF UP BY YOUR BOOTSTRAPS! If you pick yourself up hard enough you’ll fly, I had to carry myself that way to school everyday back in the 40’s, uphill, both ways.
Maybe YOU can’t do that but don’t try to tell others what they can and can’t to do. Seriously negative energy /s
You stupid fuck! That's not how you fly. You are supposed to throw yourself at the ground and miss. My god, how did you even get through preschool?
You just aint strong enough
Speak for yourself
That's not my preferred brand of truck, so I assert that it never works that's why.
Based.
You know why they call it a Ford? Fix It Again, Tony!
You're thinking of a Fiat, Dale
Fiat Ford is Found On Road Dead
Fucker Only Runs Downhill
I like that one. Now I'm wondering how many different regional disparages there are for Ford.
Because the magnet is being pulled towards the car with the same force as the car is being pulled towards the magnet.
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You could also make these vehicles jointed to one another to prevent collisions, traffic jams, and increase efficiency. Genius idea! Should make billions of dollars in productivity! Why hasn't no one thought about this before?!
What about if we made underground systems too so more space could be used above? I think we're onto something guys
Can we pls name it after my second favorite sandwich place?
Thank you
Nope. Magnets do no work. Work, in physics, is the term used when a force moves an object a distance x.
it works when you go down hill.
Big brain time
Finally, Albert Einstein has been resurrected, praise Jebus
For every action, there is an equal and opposite reaction. That's why
Even if that shit somehow worked following the logic technically when you retract that shit wouldn’t it suck up the car or repel it?
Because we've had since 1886 to make this a thing?
Because it is a closed system
Magnet is being attracted to metal plate which means it’s pushing back on the truck we’re it is attached causing the forces to cancel out
Everyone talking about the physics but how the hell did that end up in Place?
This.
Cause both ends of the arm are applying a force equal in magnitude and opposite in direction
I like how they put the metal at the front as if the Silverado is made of plastic.
All forces push equally I'm both directions. The only way to get somewhere is to leave something behind. Cars move by pushing the earth the other way. Boats move by pushing water the other way. This contraption would just create to equally powerful forces that cancel each other out
Fucking magnets, how do they work?
Basically humans need to see physics in action to be able to predict the outcomes of any movement and force interaction. A kid saw a rock fall and now he knows rocks will fall. Troll physics are so popular because they are the conclusions you come up with if you didn't see enough physics in action. This perpetual motion magnet device is the same as when kids think you can jump from a building with a big heavy object, and then jump off from it before you hit the ground to negate "fall damage"
Not saying this is possible, but why the metal block? Does that truck have a plastic engine?
Even if it did, how would you stop?
The car is a distraction, what happens when you place a magnet and a piece of metal nearby there isn’t a “pull” it’s just a connect
[Reminds me of this](https://youtu.be/G8RwjLh7ZMw)
Here's an explanation: "Magnet: hey car move this way you bith Car: no u" They were happy ever after.
because the magnet and the metal would be equally attracted to each other so neither would pull to other lmao. also even if this did work there’s nothing to say the car wouldn’t move backwards
Simple, try pulling your hair up and flying.
This is how a Romulan starship works essentially only replace the magnet with a quantum singularity.
Explain why this wouldn’t work to me I’m stupid term please
It’s a Chevy that’s why😭
The same way you can't pull yourself up by grabbing your hair
Pull yourself up by your own bootstraps
If you look at this and think the magnet should be pulling it forward, essentially the piece of metal is pulling just as hard on the magnet backwards.
For every action there is an equal and opposite reaction.
Someone genuinely explain why it wouldn't. I imagine it has something to do with the weight of the truck, but the obvious "it just doesn't work like that" isn't enough for my feeble mind
The truck isn’t just getting pulled towards the magnet. The magnet is also being pulled towards the truck with the same force. And becuase the magnet is physically mounted on the truck itself, this means that the magnet pushes on the truck just as much as it pulls on it, resulting in zero movement
Thanks for that
This is why people believe you can pull yourself up by your bootstraps.
Magnets work both ways so it will try to pull the car and the car will try to pull it, who's stronger? I don't recall the exact explanation tho. Also its the same logic for why we can't hold our own body in the air with our hands as a support
who are you, and why are you so educated in the ways of science?
Because physics
it can work if a few things are true. 1. the contraption has to be able to withstand the force of the magnet pulling towards the truck. So basically, if the magnet generates 100 newtons of force pulling towards the truck, we're fine so long as the contraption can take 101 newtons of force on it. 2. you have to be able generate enough power to make it work. So if you throw this together, with an RC car, you could make the thing move forward, it'd just be inefficient as all hell
For the same reason you cannot pull your own body with your own hands.
Newtons 3rd law. The magnet is attached to the truck by an arm. The magnet is supposed to pull the iron slab from the front of the truck. The arm holding the magnet does not move. (Even if it did, it still would not allow the truck to accelerate) The iron slab itself will get attractive forces towards the magnet, buy only the magnet and not truck entirely. You have the same net force from the magnet pulling the iron slab, as to the arm holding the magnet in place from the bed of the truck.
What if you have magnets on the wheels (don't ask me how) and two big magnets, front and back, that you could change the polarity of, perhaps by mechanically spinning or running a electric current. You attract and repel the magnets on the wheels in a sequence that makes them roll forwards (or backwards). This sounds like a horrible idea and, aside from being practically unfeasible, a recipe for attracting any and all sorts metal scraps/shrapnel to your car/tires.
You, my friend, have just created a shitty version of an electric motor, just built around the wheel rather then built around the axle. It works in a similar way, although its design inherently switches polarity just based on how the axle has rotated. [How electric motors work](https://electronics.howstuffworks.com/motor.htm)
yay! just wait, you will soon see me rolling down the street in my shitty-electric-motored, post-apocalyptic jalopy. the fact that someone even *tried* to understand what i was poorly attempting to express brought me some kind of joy!^lol thank you for the link :)
Glad I could bring some happiness to your day.
So let me explain why this wouldnt work the averagr car is 600 pounds, therefore we would need a magnet so strong it could pull 600 pounds, not to mention thsts a truck which waighs wayyy more, since magnets pull everything aroung they would disrupt other magnets
Ok i need to know if this will work now
metal-> <-magnet metal-><-magnet metalmagnet *car is stopped*
The magnet is connected to the car. So as the metal gets closer to the magnet, the magnet would go further away
He has a point
It would need more metal and a bigger magnet.
Because u need power to power the magnet
Because the same rule that makes you can't pull your hair and fly away
What if two people who are superhumanly strong attached to a long rope flings the other into the air and the person in the air uses their immense strength to pull the person from the ground and then they just continuously pull/fling each other. Would this work?
This is like trying to lift yourself up
But Is he wrong?
Fuck the newton laws
Reject newton, return to oldton
I think a kid posted this lol
*Angry Albert Einstein noises
Well how the hell do you control how fast you're going?
It would probably work...to make the truck do a front wheelie when you hit the brakes.
wow albert einstein is so proud now hes doing an experiment if you can run faster by pulling your head forwards wow its so successful. just wow never thought of that 😐
How are you gonna stop?